CPC5620_1 Datasheet, PDF (14/17 Pages) Clare, Inc. – LITELINK® III Phone Line Interface IC (DAA)

CPC5620/CPC5621
6. LITELINK Performance
The following graphs show LITELINK performance
using the North American application circuit shown in
this data sheet.
Figure 7. Receive Frequency Response at RX
2
0
-2
-4
Gain
-6
dBm
-8
-10
-12
-14
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 8. Transmit Frequency Response at TX
2
0
-2
-4
Gain
dBm
-6
-8
-10
-12
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 9. Receive THD on RX
0
-20
-40
-60
THD+N
dB
-80
-100
-120
-140
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 10.Transmit THD on Tip and Ring
0
-20
-40
-60
THD+N
dB
-80
-100
-120
-140
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 11.Transhybrid Loss
0
-5
-10
-15
THL
dB ^-20
-25
-30
-35
-40
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 12.Return Loss
60
55
50
Re tur n
Loss 45
(dB)
40
35
30
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (Hz)
14
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